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Senior Applied Scientist, Japan Prime & Marketing

Tokyo, Japan💼 Full-time🗓 2026-06-10 → 2026-09-26

Core

Lead machine learning science for personalization, customer growth, and loyalty optimization for Amazon Prime in Japan.

Role type

Senior Applied Scientist (Marketing & Personalization)

Builds

Personalization systems, points allocation frameworks, and promotional targeting models for millions of Japanese customers.

Domain

E-commerce, Customer Growth, Marketing Science

Deliverable

production ML models

Required skills

machine learning, neural deep learning, causal inference, experimentation design, econometric methods, Java, C++, Python, large-scale ML systems

Preferred skills

R, scikit-learn, Spark MLLib, MxNet, Tensorflow, numpy, scipy, Hadoop, distributed systems, loyalty program strategy, pricing science, peer-reviewed publications

Technologies

Java, C++, Python, R, scikit-learn, Spark MLLib, MxNet, Tensorflow, numpy, scipy, Hadoop, Spark

Responsibilities

Define and execute science roadmap for personalization and customer growth; design ML models for segmentation, LTV prediction, and churn propensity; build optimization frameworks for points and promotions; apply causal inference and econometrics; develop personalization systems; lead large-scale A/B tests; integrate models into low-latency production systems; mentor junior scientists.

Seniority

Senior, hands-on IC with strategic influence

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